summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/msm/msm_gem.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
-rw-r--r--drivers/gpu/drm/msm/msm_gem.c34
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 6b5a6c8c7658..29eacfa29cfb 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -40,9 +40,9 @@ static struct page **get_pages(struct drm_gem_object *obj)
}
msm_obj->sgt = drm_prime_pages_to_sg(p, npages);
- if (!msm_obj->sgt) {
+ if (IS_ERR(msm_obj->sgt)) {
dev_err(dev->dev, "failed to allocate sgt\n");
- return ERR_PTR(-ENOMEM);
+ return ERR_CAST(msm_obj->sgt);
}
msm_obj->pages = p;
@@ -159,7 +159,6 @@ out_unlock:
out:
switch (ret) {
case -EAGAIN:
- set_need_resched();
case 0:
case -ERESTARTSYS:
case -EINTR:
@@ -393,11 +392,14 @@ int msm_gem_queue_inactive_work(struct drm_gem_object *obj,
}
void msm_gem_move_to_active(struct drm_gem_object *obj,
- struct msm_gpu *gpu, uint32_t fence)
+ struct msm_gpu *gpu, bool write, uint32_t fence)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
msm_obj->gpu = gpu;
- msm_obj->fence = fence;
+ if (write)
+ msm_obj->write_fence = fence;
+ else
+ msm_obj->read_fence = fence;
list_del_init(&msm_obj->mm_list);
list_add_tail(&msm_obj->mm_list, &gpu->active_list);
}
@@ -411,7 +413,8 @@ void msm_gem_move_to_inactive(struct drm_gem_object *obj)
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
msm_obj->gpu = NULL;
- msm_obj->fence = 0;
+ msm_obj->read_fence = 0;
+ msm_obj->write_fence = 0;
list_del_init(&msm_obj->mm_list);
list_add_tail(&msm_obj->mm_list, &priv->inactive_list);
@@ -433,8 +436,18 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op,
struct msm_gem_object *msm_obj = to_msm_bo(obj);
int ret = 0;
- if (is_active(msm_obj) && !(op & MSM_PREP_NOSYNC))
- ret = msm_wait_fence_interruptable(dev, msm_obj->fence, timeout);
+ if (is_active(msm_obj)) {
+ uint32_t fence = 0;
+
+ if (op & MSM_PREP_READ)
+ fence = msm_obj->write_fence;
+ if (op & MSM_PREP_WRITE)
+ fence = max(fence, msm_obj->read_fence);
+ if (op & MSM_PREP_NOSYNC)
+ timeout = NULL;
+
+ ret = msm_wait_fence_interruptable(dev, fence, timeout);
+ }
/* TODO cache maintenance */
@@ -455,9 +468,10 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
uint64_t off = drm_vma_node_start(&obj->vma_node);
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
- seq_printf(m, "%08x: %c(%d) %2d (%2d) %08llx %p %d\n",
+ seq_printf(m, "%08x: %c(r=%u,w=%u) %2d (%2d) %08llx %p %d\n",
msm_obj->flags, is_active(msm_obj) ? 'A' : 'I',
- msm_obj->fence, obj->name, obj->refcount.refcount.counter,
+ msm_obj->read_fence, msm_obj->write_fence,
+ obj->name, obj->refcount.refcount.counter,
off, msm_obj->vaddr, obj->size);
}